English verb conjugation
MUST SUBVENE

Regular verb: subvene - subvened - subvened

Affirmation

Simple form	V-ing form
I must subvene you must subvene he must subvene we must subvene you must subvene they must subvene	I must be subvening you must be subvening he must be subvening we must be subvening you must be subvening they must be subvening
Perfect	V-ing perfect
I must have subvened you must have subvened he must have subvened we must have subvened you must have subvened they must have subvened	I must have been subvening you must have been subvening he must have been subvening we must have been subvening you must have been subvening they must have been subvening

Negation

Simple form	V-ing form
I mustn't subvene you mustn't subvene he mustn't subvene we mustn't subvene you mustn't subvene they mustn't subvene	I mustn't be subvening you mustn't be subvening he mustn't be subvening we mustn't be subvening you mustn't be subvening they mustn't be subvening
Perfect	V-ing perfect
I mustn't have subvened you mustn't have subvened he mustn't have subvened we mustn't have subvened you mustn't have subvened they mustn't have subvened	I mustn't have been subvening you mustn't have been subvening he mustn't have been subvening we mustn't have been subvening you mustn't have been subvening they mustn't have been subvening

Interrogative form

Simple form	V-ing form
must I subvene? must you subvene? must he subvene? must we subvene? must you subvene? must they subvene?	must I be subvening? must you be subvening? must he be subvening? must we be subvening? must you be subvening? must they be subvening?
Perfect	V-ing perfect
must I have subvened? must you have subvened? must he have subvened? must we have subvened? must you have subvened? must they have subvened?	must I have been subvening? must you have been subvening? must he have been subvening? must we have been subvening? must you have been subvening? must they have been subvening?

Interro-negative form

Simple form	V-ing form
mustn't I subvene? mustn't you subvene? mustn't he subvene? mustn't we subvene? mustn't you subvene? mustn't they subvene?	mustn't I be subvening? mustn't you be subvening? mustn't he be subvening? mustn't we be subvening? mustn't you be subvening? mustn't they be subvening?
Perfect	V-ing perfect
mustn't I have subvened? mustn't you have subvened? mustn't he have subvened? mustn't we have subvened? mustn't you have subvened? mustn't they have subvened?	mustn't I have been subvening? mustn't you have been subvening? mustn't he have been subvening? mustn't we have been subvening? mustn't you have been subvening? mustn't they have been subvening?